Hello Everyone ....!!!! Today we back with a very general & common topic ''Causes of failure of Rollers & Idlers''. Why Do Rollers Fail? • Bearing Contamination o Roller Sealing Systems • ShellWear / Abrasion o Misalignment • Bearing Load o Shaft & Tube Deflection • Rollers Jamming o Material Spillage • Impact Zones o Spillage at Transfer Points • Wash‐down Areas o Constant Moisture • Fine Particulate Contaminants Some of the Conditions that affect Idler Life: • Type of Material Handled (dry, wet, abrasive, etc.) • Idler Load • Effect of Load on Predicted Bearing Life • Belt Speed • Roll Diameter • Environmental, Maintenance & Special Conditions
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Timing Belt Selection Guide
Hello Everyone....!!! First we will talk about Tooth Pitch Comparison, later on Belt Selection Guide. Tooth Pitch Comparison Imperial Pitch Belts - XL, L, H, XH This classic trapezoidal pitch is the original timing belt tooth design. This tooth pitch is commonly used for conveying applications. The tooth profile is fairly low and has a large surface area at the tip of the tooth providing good support on sliding conveyor surfaces. T Pitch Belts - T2.5, T5, T10, T20 These metric trapezoidal pitches are similar to imperial pitches, also commonly used for conveying applications, yet have a slightly deeper tooth engagement than imperial profiles. The tooth meshing is more reliable. However, backlash can be slightly greater. AT Pitch Belts - AT5, AT10, AT20 This pitch was developed to enable higher load carrying capacity combined with low backlash. The stronger and stiffer tooth makes these belts ideal for linear positioning and motion control, but may require larger pulley